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Re: creating size-limited tar files

References (6 earlier) <CAF_E5JYJ7Fw4b4z81454k9HwmjZ49qjx48fC_f+skcphCDNUeA@mail.gmail.com> <CAF_E5Jas3ObdX=Mhusj63R_Xcm0e1JwjPEuOgZoggON6-cttjA@mail.gmail.com> <CAF_E5JZFJ+TPmF0LUEFU8AVqbOWfJbH9Yy60CKkcrDNnWATiVg@mail.gmail.com> <CALwzidnrTcSK+Z0cGf5WpTN2sLqVgbpbt2i1DcdUFnGQYEvKQg@mail.gmail.com> <CALwzid=3vXO=WNfmOHtUJTFB1ZPnVLmVnUgmKb3kdWsYtin8bQ@mail.gmail.com>
From Ian Kelly <ian.g.kelly@gmail.com>
Date 2012-11-13 09:30 -0700
Subject Re: creating size-limited tar files
Newsgroups comp.lang.python
Message-ID <mailman.3635.1352824288.27098.python-list@python.org> (permalink)

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On Tue, Nov 13, 2012 at 9:25 AM, Ian Kelly <ian.g.kelly@gmail.com> wrote:
> Sorry, the example I gave above is wrong.  If you're calling
> p1.communicate(), then you need to first remove the p1.stdout pipe
> from the Popen object.  Otherwise, the communicate() call will try to
> read data from it and may "steal" input from p2.  It should look more
> like this:
>
>>>> p1 = subprocess.Popen(cmd1, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
>>>> p2 = subprocess.Popen(cmd2, shell=True, stdin=p1.stdout, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
>>>> p1.stdout = None

Per the docs, that third line should be "p1.stdout.close()".  :-P

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creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-07 17:13 +0000
  Re: creating size-limited tar files Neil Cerutti <neilc@norwich.edu> - 2012-11-07 18:40 +0000
  Re: creating size-limited tar files Alexander Blinne <news@blinne.net> - 2012-11-07 20:05 +0100
    Re: creating size-limited tar files Roy Smith <roy@panix.com> - 2012-11-07 15:32 -0500
      Re: creating size-limited tar files Andrea Crotti <andrea.crotti.0@gmail.com> - 2012-11-07 21:52 +0000
      Re: creating size-limited tar files Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2012-11-07 23:15 +0000
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-08 10:11 +0000
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-08 10:29 +0000
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-09 10:39 +0000
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-13 10:31 +0000
      Re: creating size-limited tar files Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-13 09:07 -0700
      Re: creating size-limited tar files Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-13 09:25 -0700
      Re: creating size-limited tar files Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-13 09:30 -0700
      Re: creating size-limited tar files Kushal Kumaran <kushal.kumaran+python@gmail.com> - 2012-11-14 11:35 +0530
      Re: creating size-limited tar files Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-14 00:22 -0700
      Re: creating size-limited tar files Kushal Kumaran <kushal.kumaran+python@gmail.com> - 2012-11-14 14:21 +0530
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-14 11:52 +0000
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-14 15:56 +0000
      Re: creating size-limited tar files Dave Angel <d@davea.name> - 2012-11-14 11:10 -0500
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-14 16:16 +0000
  Re: creating size-limited tar files Dave Angel <d@davea.name> - 2012-11-14 11:33 -0500
  Re: creating size-limited tar files Andrea Crotti <andrea.crotti.0@gmail.com> - 2012-11-14 20:43 +0000
  Re: creating size-limited tar files Dave Angel <d@davea.name> - 2012-11-14 15:57 -0500

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